<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>求数组最大值</title>
    <script>
        var arr = [1,3,5,4,7];
        var max = arr[0];
        var min = arr[0];
        for (var i = 1; i < arr.length; i++) {
            if (arr[i] > max) {
                max = arr[i]
            }
            if (arr[i] < min) {
                min = arr[i]
            }
        }
        console.log(max);
        console.log(min);
    </script>
</head>
<body>
    
</body>
</html>